Log Message:
   PR/33623: Chuck Cranor: Ping stops when ran in the background
   because it tries to set the tty not to print kerninfo. Change it
   to only only play with the tty when ping is running in the foreground
   (and will not stop when calling tcsetattr()). In my opinion, it is
   preferable to print the kerninfo line with the ping info message
   rather than to mess with the tty, but that's just me.


i also vote we fix ping to not turn of kerninfo...